57 lines
1.9 KiB
JavaScript
Executable File
57 lines
1.9 KiB
JavaScript
Executable File
#!/usr/bin/env node
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/*! @license ©2014 Miel Vander Sande - Multimedia Lab / iMinds / Ghent University */
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/* Command-line utility to validate Turtle files. */
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var N3 = require('n3'),
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fs = require('fs'),
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N3Util = N3.Util,
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http = require('http'),
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url = require('url'),
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fs = require('fs'),
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validate = require('./lib/validator.js');
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var help = function () {
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// In all other cases, let's help the user and return some help
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console.log('RDF NTriples/Turtle validator using Ruben Verborgh\'s N3 nodejs library');
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console.log('© 2014 - MMLab - Ghent University - iMinds');
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console.log('Source code: https://github.com/MMLab/TurtleValidator');
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console.log('');
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console.log('Examples:');
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console.log('');
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console.log(' $ ttl <path-to-file>');
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console.log(' $ curl http://data.linkeddatafragments.org/dbpedia -H "accept: text/turtle" | ttl');
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console.log(' $ ttl http://triples.demo.thedatatank.com/demo.ttl');
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};
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var args = process.argv.slice(2);
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if (args.length > 1 || (args.length > 0 && (args[0] === "-h" || args[0] === "--help")))
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return help();
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if (args.length === 0) {
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validate(process.stdin, showValidation);
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} else if (args.length > 0) {
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// Create a stream from the file, whether it is a local file or a http stream
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var parsedUrl = url.parse(args[0]);
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if (parsedUrl.protocol === 'http:')
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http.get(parsedUrl.href, function (res) {
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validate(res, showValidation);
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}).on('error', function (e) {
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console.log("Got error: " + e.message);
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});
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else
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validate(fs.createReadStream(parsedUrl.href), showValidation);
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}
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// Use stdio as an input stream
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function showValidation(feedback) {
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feedback.errors.forEach(function (error) {
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console.log(error);
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});
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feedback.warnings.forEach(function (warning) {
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console.log(warning);
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});
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console.log("Validator finished with " + feedback.warnings.length + " warnings and " + feedback.errors.length + " errors.");
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}
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